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    jejcbabb's Avatar
    jejcbabb Posts: 2, Reputation: 1
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    #1

    May 28, 2008, 05:40 PM
    Honeywell Thermostat Wiring
    My son had a Honeywell Simple Comfort 3001 thermostat zapped during a thunderstorm. He purchased a Honeywell RTH230B to replace it.

    The 3001 had wires going to 5 terminals: RC, G, Y, W, C.
    The 230B has 5 terminals but two of them are bridged: RH and RC bridged, G, Y, W.

    Where do we connect the wire that was hooked to the C terminal on the 3001?

    Thanks for the help,
    John
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    May 28, 2008, 06:30 PM
    Rc and Rh stays bridged and connects to R.

    C is common and would not be used in this case. The batteries in the tstat provide power for the stat. No batteries - No heat or cool. When C is used the batteries in the stat last longer.
    jejcbabb's Avatar
    jejcbabb Posts: 2, Reputation: 1
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    #3

    May 28, 2008, 06:48 PM
    Thank you for the information.
    John
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